DIANA E LAKE MD
NPI 1346211380
Internal Medicine - Hematology in New York, NY
About Diana E Lake Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DIANA E LAKE MD (NPI 1346211380) is an individual hematology provider in New York, New York, licensed in New York (126566) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS and is a graduate of Chicago College Of Medicine And Surgery (1972).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Diana E Lake Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Diana Lake reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
West Harrison, NY 10604
- Reassigned Medicare billing, New York enrollment
- 328 clinicians in this Medicare group
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 514 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10021 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10021
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Diana Lake's NPI number?
The NPI number for Diana Lake is 1346211380. It was assigned to this individual provider in the NPPES registry on January 29, 2006.
Where is Diana Lake located?
Diana Lake practices at 1275 York Ave, New York, NY 10021. The listed phone number is (212) 639-2000.
What is Diana Lake's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology, with taxonomy code 207RH0000X.
Is Diana Lake enrolled in Medicare?
Yes. Diana Lake is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Diana Lake's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diana Lake reassigns Medicare benefits to 2 organizations: Msk Harrison (West Harrison, NY) and Memorial Solid Tumor Group (New York, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Diana Lake's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Diana Lake was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Diana E Lake, MD · NPI 1346211380
Hematology physician in New York, New York. Individual provider, active in the CMS NPPES registry since January 29, 2006.
## Identity
- **NPI:** 1346211380 (Entity type: Individual)
- **Enumerated:** January 29, 2006
- **Primary specialty:** Internal Medicine - Hematology · taxonomy 207RH0000X
- **State license:** 126566 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1275 YORK AVE, New York, NY 10021-6007
- **Phone:** (212) 639-2000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Msk Harrison (NPI 1174923593, West Harrison, NY); Memorial Solid Tumor Group (NPI 1699746172, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Chicago College Of Medicine And Surgery, class of 1972
## Record status
- **NPPES last updated:** October 19, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1346211380) · Data from the CMS NPPES public registry.